Walter coulthard



N0. 626,672. Patented luhe l3, I899.

w. CUULTHABD.

SEED nmu. sHoE.

(Application filed'Apr. 22, 1899 (No Model.)

M01653. InV'entor.

UNITED STATES PATENT OFFICE.

\VALTER COULTHARD, OF OSHAWA, CANADA.

SEED-DRILL S HOE SPECIFICATION forming part of Letters Patent 110,626,672, dated June 13, 1899.

Application filed April 22, 1899.

To all whom it may concern:

Be it known that I, WALTER OOULTHARD, of the town of Oshawa, in the county of Ontario, in the Province of Ontario, Canada, have invented certain new and useful Improvements in Seed-Drill Shoes, of which the following is a specification.

Hy invention relates to improvements in seed-drill shoes; and the object of the invention is to devise a simple, cheap, and easilyadjusted supplemental heel for the shoe,which may be attached thereto when the shoe becomes worn and practically dispense with the necessity of supplying an entirely new shoe, and thus eifect an economy to the users of I seed-drills and yet render the shoe as efiectual as when new; and it consists, essentially, of a heel having preferably an arc-shaped cut ting edge at the bottom of the foot, with upwardly-extending side plates, preferably of sheet spring-steel, between which the shoe fits, the upper ends of the sides extending beyond the upper edge of the shoe and being preferably connected together by a bolt so tightened as to securely grip upon the sides of the shoe and make such heel practically one with the same, the parts being constructed and arranged as hereinafter more particularly explained.

Figure l is a perspective View of a seeddrill shoe, showing my improved supplemental heel. Fig. 2 is a detail of the heel removed. Fig. 3 a; 11 Fig. 1.

In the drawings like lettersof reference in dicate corresponding parts in each figure.

A is the ordinary or permanent shoe.

Bis the boot or iron tube by which the grain is conveyed to the rear of the shoe.

0 is my supplemental heel, which comprises the side plates 0 c, the toe c, the heel c and the wedge-shaped piece of iron or steel 0 fitting between the plates 0 c at the heel portion and suitably welded or otherwise secured thereto.

D is the bolt which extends through the apex of the angle of the converging upper sides of the shoe. The bolt D serves to frictionally hold the side plates 0 c to the sides of the shoe.

0 is the end of the unwelded part of the sides of the supplemental heel. As shown in the drawings, I preferably make my suppleis a cross-section on the line Serial No. 714,137. (No model.)

mental heel of two plates of sheet-steel, as indicated by the side plates 0 0. These are welded together at the cutting edge or sole 0, except at c, which I leave unwelded or with a substantially V-shaped opening, through which the front portion of the shoe passes. The object of this opening is to receive and hold the sole of the permanent shoe, as shown at c ,at which point I preferably insert a strong rivet E. The wedge-shaped piece of iron or steel is preferably welded to the lower portions of the sides, and such sides, extending upwardly, flare more or less, so as to permit the sole of the permanent shoe being inserted readily, such sole resting on the wedge-shaped block- 0 while the front part of the sole extends through the opening'c as hereinbefore described.

It will be seen from this description that the old permanent form of shoe when worn can be supplied with practically a new heel at but a minimum cost and without the necessity of employing skilled labor to fit it in position. These supplemental heels can consequently be renewed from time to time at a trifling expense, thus prolonging indefinitely the life of the shoe.

I am aware it is not new, broadly, to provide new cutting edges or heels to a seed-drill shoe, and I do not lay claim, broadly, to any such invention.

What I claim as my invention is 1. A supplemental heel for seed-drill shoes comprising the foot or lower cutting edge havinga solid wedge-shaped lower portion or foot, the top of which is designed to abut the bottom of the shoe, and the sides extending upwardly therefrom designed to extend above and embrace both sides of the shoe and means for binding together the upper projecting ends of the sides as and for the purpose specified.

2. A supplemental heel for seed-drill shoes comprising the foot or lower cutting edge having a solid wedge-shaped lower portion or foot, the top of which is designed to abut the bottom of the shoe, and the sides extending upwardly therefrom designed to extend above and embrace both sides of the shoe and a bolt extending through and connecting the upper I 3. A supplemental heel for seed-drill shoes sides being secured together by a bolt extendcomprising a substantially triangular double plate extending on both sides of the shoe and formed with a bottom wedge-shaped foot extending beneath the heel of the shoe, the said plates being welded or secured together up to a point near the front apexes 0f the supplemental heel, and the top apexes of the two ing above the top of the shoe as and for the go purpose specified.

WVALTER COULTHARD. 

